US4564288A - Electrostatic recording apparatus - Google Patents

Electrostatic recording apparatus Download PDF

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Publication number
US4564288A
US4564288A US06/691,277 US69127785A US4564288A US 4564288 A US4564288 A US 4564288A US 69127785 A US69127785 A US 69127785A US 4564288 A US4564288 A US 4564288A
Authority
US
United States
Prior art keywords
light source
paper
moving speed
original copy
magnification
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/691,277
Other languages
English (en)
Inventor
Torahiko Nonoue
Etsuzo Moriki
Yoshifumi Miyazaki
Takahal Izawa
Shinichi Kikkawa
Kenhachi Shiraki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Assigned to SANYO ELECTRIC CO., LTD. reassignment SANYO ELECTRIC CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: IZAWA, TAKAHAL, KIKKAWA, SHINICHI, MIYAZAKI, YOSHIFUMI, MORIKI, ETSUZO, NONOUE, TORAHIKO, SHIRAKI, KENHACHI
Application granted granted Critical
Publication of US4564288A publication Critical patent/US4564288A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/54—Lamp housings; Illuminating means
    • G03B27/542—Lamp housings; Illuminating means for copying cameras, reflex exposure lighting
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/041—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with variable magnification

Definitions

  • FIG. 3 and FIG. 4 are graphs showing other conventional examples of relationship between the moving speed and time of the light source.
  • FIG. 3 shows a case where the paper of A3 size is used
  • FIG. 4 shows a case where the paper of A4 size is used.
  • the returning speed of the light source is set so that the returning time of the light source Tr3 agrees nearly with the paper feeding time Tp when the paper of A3 size is used.
  • a motor controller 136 is further connected to the bus lines 126 through an I/O interface 134.
  • the integrated circuit "HL-101C” made by Sanyo Electric Co., Ltd. is utilized for this motor controller 136, and a DC servo motor 138 is connected to this motor controller 136.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
  • Control Or Security For Electrophotography (AREA)
US06/691,277 1984-07-02 1985-01-14 Electrostatic recording apparatus Expired - Fee Related US4564288A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59136951A JPS6115135A (ja) 1984-07-02 1984-07-02 電子複写機
JP59-136951 1984-07-02

Publications (1)

Publication Number Publication Date
US4564288A true US4564288A (en) 1986-01-14

Family

ID=15187318

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/691,277 Expired - Fee Related US4564288A (en) 1984-07-02 1985-01-14 Electrostatic recording apparatus

Country Status (2)

Country Link
US (1) US4564288A (ja)
JP (1) JPS6115135A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2208279A (en) * 1987-07-22 1989-03-22 Ricoh Kk Printer device using a mimeograph
EP0383345A2 (en) * 1989-02-17 1990-08-22 Canon Kabushiki Kaisha Image forming apparatus
US5161029A (en) * 1988-12-23 1992-11-03 Kabushiki Kaisha Toshiba Image forming apparatus for controlling stepping motor in accordance with copy magnification
US20180034991A1 (en) * 2016-07-26 2018-02-01 Canon Kabushiki Kaisha Image forming apparatus reading a plurality of documents of different sizes and method of controlling image forming apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2619640B2 (ja) * 1987-05-18 1997-06-11 コニカ株式会社 走査露光光学系制御方法
JPH0797810B2 (ja) * 1987-09-30 1995-10-18 シャープ株式会社 ファクシミリの読取り／書込みヘッドの駆動方式
JP2756253B2 (ja) * 1988-03-14 1998-05-25 キヤノン株式会社 原稿走査装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4336995A (en) * 1980-09-24 1982-06-29 Xerox Corporation Precession scanning system for copier device
US4362382A (en) * 1981-02-23 1982-12-07 Xerox Corporation Precession scanning system
US4377337A (en) * 1981-01-12 1983-03-22 Pitney Bowes Inc. Document scanning apparatus for an electrostatic copier
US4436416A (en) * 1980-12-11 1984-03-13 Asahi Kogaku Kogyo Kabushiki Kaisha Mirror scanning control mechanism in variable magnification type copying machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5336325B2 (ja) * 1971-09-22 1978-10-02
JPS5034241A (ja) * 1973-07-25 1975-04-02
JPS5579461A (en) * 1978-12-11 1980-06-14 Canon Inc Safety device
JPS5579460A (en) * 1978-12-13 1980-06-14 Ricoh Co Ltd Synchronizing system of reciprocating motion device
JPS58195838A (ja) * 1982-05-11 1983-11-15 Canon Inc 文書走査制御装置
JPS5912426A (ja) * 1982-07-14 1984-01-23 Minolta Camera Co Ltd 走査装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4336995A (en) * 1980-09-24 1982-06-29 Xerox Corporation Precession scanning system for copier device
US4436416A (en) * 1980-12-11 1984-03-13 Asahi Kogaku Kogyo Kabushiki Kaisha Mirror scanning control mechanism in variable magnification type copying machine
US4377337A (en) * 1981-01-12 1983-03-22 Pitney Bowes Inc. Document scanning apparatus for an electrostatic copier
US4362382A (en) * 1981-02-23 1982-12-07 Xerox Corporation Precession scanning system

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2208279A (en) * 1987-07-22 1989-03-22 Ricoh Kk Printer device using a mimeograph
GB2208279B (en) * 1987-07-22 1991-07-17 Ricoh Kk Printer device using a mimeograph
US5161029A (en) * 1988-12-23 1992-11-03 Kabushiki Kaisha Toshiba Image forming apparatus for controlling stepping motor in accordance with copy magnification
EP0383345A2 (en) * 1989-02-17 1990-08-22 Canon Kabushiki Kaisha Image forming apparatus
EP0383345A3 (en) * 1989-02-17 1991-11-27 Canon Kabushiki Kaisha Image forming apparatus
US5105225A (en) * 1989-02-17 1992-04-14 Canon Kabushiki Kaisha Image forming apparatus with increased throughput from simultaneous scanning and original feed
US20180034991A1 (en) * 2016-07-26 2018-02-01 Canon Kabushiki Kaisha Image forming apparatus reading a plurality of documents of different sizes and method of controlling image forming apparatus
CN107656428A (zh) * 2016-07-26 2018-02-02 佳能株式会社 图像形成设备及其控制方法和存储介质
US10805493B2 (en) * 2016-07-26 2020-10-13 Canon Kabushiki Kaisha Image forming apparatus, method of controlling the same, and storage medium
CN107656428B (zh) * 2016-07-26 2021-02-19 佳能株式会社 图像形成设备及其控制方法和存储介质
CN112947018A (zh) * 2016-07-26 2021-06-11 佳能株式会社 图像形成设备及其控制方法和存储介质
US11212406B2 (en) * 2016-07-26 2021-12-28 Canon Kabushiki Kaisha Image forming apparatus, method of controlling the same, and storage medium
CN112947018B (zh) * 2016-07-26 2024-07-12 佳能株式会社 图像形成设备及其控制方法和存储介质

Also Published As

Publication number Publication date
JPS6115135A (ja) 1986-01-23

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SANYO ELECTRIC CO., LTD. 18, KEIHANHONDORI 2-CHOME

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:NONOUE, TORAHIKO;MORIKI, ETSUZO;MIYAZAKI, YOSHIFUMI;AND OTHERS;REEL/FRAME:004358/0658

Effective date: 19841228

FPAY Fee payment

Year of fee payment: 4

FPAY Fee payment

Year of fee payment: 8

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 19980114

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362